1. Temperature Measurement Thermometer

2. Air Temperature Data Daily Mean Daily Range Monthly Mean Annual Mean Annual Range Normal

4. Salt Lake City Temperatures 2004 – Observed, Normals, Records Temp. time series: temp at one place over time

5. What Controls Temperatures at a Particular Location? Latitude Altitude Nearby water (especially oceans) Ocean currents Position relative to prevaling winds Mountains isolate water effects Cloud cover (and albedo)

6. Latitude

8. Sun Angles at Different Latitudes

9. Altitude Guayaquil: sealevel Quito: 9200 ft

10. Hidden Peak, Snowbird Alt = 11,000’ High = 32 o F North Provo Alt = 4600’ High = 47 o F

11. Monthly average high & low temps for Sacramento (red) and San Francisco (black) California Oceans (water) Moderate Temps of Coastal AreasSacramento San Francisco

13. Coasts and prevailing wind direction

14. Ocean Currents

15. Geographic Position Mountains

16. Fog in Salt Lake Valley

17. Effects of Inversion & Cloud Cover in SLC Area 1/20 – 1/27/05 Alta Base 8800’ 47 o F Highs Olympus Cove 5600’ 29 – 32 o F Highs Sugarhouse 4400’ 32 – 33 o F Highs

18. Cloud Cover

22. World Distribution of Temperatures Annual Range (highest monthly ave. minus lowest monthly ave.)

23. World Distribution of Temperatures January Means

24. World Distribution of Temperatures July Means

25. Daily Variations in Air Temperature

26. Maximum & Minimum Thermometers

27. Thermograph

29. Temperature Scales

30. Wind-Chill Factor

31. Chapter 3 END

32. Land & Water